Counterfoil rule note
Quoted from a public specification. This page is not a validator, and it is not tax, legal, or accounting advice.
An Invoice shall contain maximum one Payment Card account (BG-18).
Source: https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/UBL-SR-54/
Peppol BIS Billing 3.0, May 2026 release, EN 16931 model bound to UBL
Severity note: fatal, from the Flag column of the Peppol BIS Billing 3.0 UBL rules index retrieved 2026-10-18.
An invoice shall contain at most one payment card account. The statement ends with a period and says shall. It is 66 characters. The flag is fatal. The context is an invoice or a credit note. The published test does not wrap the count in parentheses. It counts the payment card account. The count comparison has a space before <= and a space after it.
Send at most one payment card account.
Illustration of the condition in the official statement. Not an example published by the source.
Fails the stated condition. An invoice has two payment card accounts.
Passes the stated condition. An invoice has one payment card account, or none.
Copied from the source. Not reimplemented on this page.
/ubl:Invoice | /cn:CreditNote
count(cac:PaymentMeans/cac:CardAccount) <= 1
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